[OE-core] [PATCH v2 6/8] recipetool: create: check if npm available if npm:// URL specified

[Paul Eggleton]

If the user specifies an npm:// URL then the fetcher needs npm to be
available to run, so check if it's available early rather than failing
later.

Signed-off-by: Paul Eggleton <paul.eggleton at linux.intel.com>
---
 scripts/lib/recipetool/create.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/scripts/lib/recipetool/create.py b/scripts/lib/recipetool/create.py
index 43c0784..1d48e36 100644
--- a/scripts/lib/recipetool/create.py
+++ b/scripts/lib/recipetool/create.py
@@ -355,6 +355,12 @@ def create_recipe(args):
             srcuri = rev_re.sub('', srcuri)
         tempsrc = tempfile.mkdtemp(prefix='recipetool-')
         srctree = tempsrc
+        if fetchuri.startswith('npm://'):
+            # Check if npm is available
+            npm = bb.utils.which(tinfoil.config_data.getVar('PATH', True), 'npm')
+            if not npm:
+                logger.error('npm:// URL requested but npm is not available - you need to either build nodejs-native or install npm using your package manager')
+                sys.exit(1)
         logger.info('Fetching %s...' % srcuri)
         try:
             checksums = scriptutils.fetch_uri(tinfoil.config_data, fetchuri, srctree, srcrev)
-- 
2.5.0